Slide fastener



S. H. NORTON SLIDE FASTENER Jan. 19, 1932.

Filed Jan. 2, 1950 INVENTOR. Samuel HNorton.

ATTOR Y.

Patented Jan. 19, 1932 UNITED STATES PATENT OFFICE SAMUEL H. NOB-TON, OF MEADVILLE, PENNSYLVANIA, ASS IGNOB T HOOKLESS FASTENER COMPANY, A CORPORATION OF PENNSYLVANIA SLIDE FASTENER Application filed January 2, 1980. Serial No. 418,018

M invention relates to slide fasteners and partlcularly to' slide fasteners of the type adapted to be completely separated at both en s.

lit is the general object of my invention to provide an improved construction for slide fasteners of the above type.

A more specific object is to provide means at the rear end-of the slider for guiding the .10 endmost fastener elements into the slider channel when one stringer of a separable fastener is being inserted through the channel of said slider to assemble the separable end connecting device;

In one form of separable end connection for such fasteners enabling them to be completely separated at both ends, a socket memher is attached to one stringer adjacent the fastener elements and a pin member is carried by the other stringer. This pin member 7.

is inserted into and removed from the socket member by threading it through the channel of the slider, and with a slider of the type heretofore used with such fasteners, the projecting end of the endmost interlocking element sometimes catches on the integral wedging portion of the slider and interferes with the insertion of the pin member into position. Various other objects and advantages of 39 my invention will more fully appear during the course of the following specification.

In the accompanying :drawings I have shown for purposes of illustrationone embodiment which my invention may assume in practice.

In these drawings-t Fig. 1 is a plaliview of one end of a slide fastener embodying my invention.

Fig. 2 is a plan view illustrating the insertion of the pin member of a separate end connection through the slider employed in carrying out my Invention.

Fig. 3 is a view similar to Fig. 2 illustrating the insertion of the pin member in a slider heretofore used with such fasteners.

Fig. 4 is a perspective view of a blank for making the slider used in my invention.

Fig. 5 is a perspective view of the slider.

A slide fastener of the general type to which my invention relates embodies a pair of flexible stringers 6 and 7 having opposed series of fastener elements 8 and 9 attached to the adjacent longitudinal edges of the stringers and adapted to be successively brought together and-interlockedby means of a slider 10 in a manner well known in the art. The slider as best seen in Fig. 5, comprises spaced wings 11 and 12 forming between them a channel 13 which receives the fastener elements during travel of the slider. An integral wedging portion 14 located substantially in the longitudinal center of the slider, connects the spaced wings l1 and 12 and acts to separate the interlocking fastener elements and uide them through the diverging portions 0 the slider channel when the slider is moved in the opening direction. A pull member 15 is connected to the slider in a suitable manner for actuating it along the stringers.

. The separable end connection which I have shown in my invention comprises a socket member 16 attached to the stringer 6 by clamping portions 17 and 18, and a pin member 19 on the end of the other stringer which is extended to provide the plate stiffening portion 20. A tube-like stiffener member 21 is also clamped to the stringer 7 above the pin member 19 and engages theendmost interlocking fastener elements on the opposite stringer in such a manner as to prevent opening up of the fastener at its lower end when placed under strain.

At the rear end of the slider adjacent the wedging portion 14, a pair of cars 22 and 23 are bent up in a curved line to project away from the slider. It will thus be seen that a rearwardly inclined guiding surface is provided which, when the pin member is being threaded through the slider channel, will engage the front ends of the endmost fastener elements 24 on the stringer 7 and cam them over into the slider channel. The pin member can thus be inserted readily intoposition against the stop lug 25 formed on the socket member 16 and the device'i's assembled without any difficulty.

By way of contrast in Fig. 3,the prior construction is illustrated. With no such guiding surface as provided by the projecting ear 23 the. endmost fastener element 24 looks against the wedging portion 14 of the slider and prevents insertion of the pin into its socket. With this type of slider it is sometimes necessary to bend the stringer 7 outwardly by hand to allow the fastener elements to pass into the slider.

As illustrated in Fig. 4 the means of my invention require practically no addition to the cost of manufacture of a slider. In blanking out or coining the slider blank 25 the die may be formed to provide the projecting ears 22 and 23 which are readily bent 11p to the form shown in Figs. 1, 2 and 5 after the slider wings are bent together or when the sliden is formed by coining operation, the wedging portion 22 may be coined and in a successive operation a V-shaped cutting tool may be employed which straddles the wedging portion and cuts out the cars 22 and 23 which automatically curl up to substantially the final shape desired. It will also be observed that these ears at the rear end of the slider furnish a convenient means for attaching an end pull member which may be desirable in certain garment and other applications.

While I have in this a plication specifically described one emb lment which my invention may assume in practice, it will be understood that this embodiment is.merely for the purposes of illustration and description and that various other forms may! be devised within the scope of my invention as defined in the appended claims.

What I claim as my invention is:

1.' In a slide fastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable along said stringers and having a channel therein to receive said fastener elements, and means on said slider for guiding the fastener elements on the stringer carrying the pin member into the slider channel during insertion of the pin member.

2. In a slide fastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end comnection at one end of said series of elements comprisinga socket member on one strin er and a pin member on the other stringer or insertion through the slider and into said socket member, and a slider movable along said stringers and having a channel therein to receive said fastener elements, said slider having a guiding member thereon to engage the projecting parts of the fastener elements to guide said elements into the slider during insertion of the pin member. a

3. In a slidefastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on-the other stringer for insertion throughthe slider and into said socket member, a slider movable along said stringers and having a channel therein to receive said fastener elements, and means adjacent the longitudinal center line of said slider presenting a curved guiding surface for engagement with the fastener elements to guide them into the slider channel when said pin member is being inserted.

4. In a slide fastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable along said stringers having spaced wings on opposite sides of the fastener elements and a wing connecting ortion at the rear end for disengaging the fastener elements when the slider is moved in one direction and a guiding member projecting rearwardly from said connecting portion to engage the endmost fastener elements and guide them into the slider channel when said pin member is being inserted.

5. In a slide fastener adapted to be com pletely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable along said stringers to control said fastener elements, said slider having a Y-shaped channel therein with diverging portions at the rear end and a wedging' portion between the diverging portions of said channel, and means on said slider presenting a rounded guiding surface at said wedging portion for guiding the endmost fastener elements into said slider channel when said pin member is being inserted.

6. In a slide fastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elcments comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable.

along said stringers and having a channel to receive said fastener elements and a pro jection at the rear end of said slider for engaging the projecting ends of said fastener elements and guiding them into the slider channel when said pin member is being inserted. I

7. In a slide fastener adapted to be completely separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable along said stringers to control said fastener elements, said slider having spaced wings forming a Y-shaped channel and an integral wedging portion for connecting said wings, and an ear bent up from said slider adjacent said wedging portion to provide a guiding means for the endmost fastener elements when said pin member is being inserted.

8. In aslide fastener adapted to be completely-separated at both ends, a pair of flexible stringers having opposed series of fastener elements projecting from their adjacent longitudinal edges, a separable end connection at one end of said series of elements comprising a socket member on one stringer and a pin member on the other stringer for insertion through the slider and into said socket member, a slider movable along said stringers to control said fastener elements, said slider having spaced wings forming a ti-shaped channel to receive said fastener elements, an integral wedging portion connect ing said wings, and a pair or ears projecting from said wedging portion bent toward each other to provide a ring-like projection for guiding the endmost fastener elements into the slider channel when said pin member is being inserted.

In testimony whereof I afix my signature SAMUEL H. NQRTQN. 

